Workers setup with nginx

WIP

The actual documentation for setting up workers is not really easy to follow :

https://github.com/matrix-org/synapse/tree/master/contrib/systemd-with-workers https://github.com/matrix-org/synapse/blob/master/docs/workers.md

This is how I (try) to setup the workers. WARNING : SHOULD BE REVIEWED ! WIP ! Actually this breaks my setup in a lot of strange places

Background

• My setup is having around 400 users. mostly around 300 concurrent connections on day time. 4500 local rooms. Some big federated rooms too.
• Server is running in a VMware with 16 CPU and 32GB RAM (half of it for postgreSQL).
• DB is 14GB big
• nginx is used as a reverse proxy
• Synapse homeserver process was hammering with 100-120%CPU all day long

Which workers are meaningful ?

First, I wanted to check what endpoints are asked the most in my installation :